Improvement in spinning bobbins



@nite-h gister, ljlstwt @frn JOSEPH. DAVIS `AND SAMUEL W. E'OSTER, OF LOWELL, MASSACHUSETTS.

Lemelmmvlvo. 63,225, dated March 2o, 1867.

IMPROVEMENT IN SPINNN G BOBBINS.

TO ALL WHOM IT MAY CONOERN:

' Be it known that we, Josera DAvIs and SAMUEL W. Fosrsn, both of Lowell, in the county of Middlesex, and State of Massachusetts, have invented certain. new and useful improvements in the Bobbins which are used on Spinning Machines, of which the following is a full, clear,land exact description, reference being had to the accompanying drawings, making part of this specification, in which- Figure 1 is a vertical central section.

Figure 2, a side elevation; Aand i Figure 3, n. bottom end-view.

In our said invention, the head A of the hohhin, and the quill B,'are mad-e in sepa-rate parts, and may he -disconnected, if either portion is injured and needs to be replaced. The'lower end of the quill B is slightly tapering from the top 0L ofthe head A downward, and largest at e, from which point to the lower end b a portion of the out-side is removed, leaving an annular space, c. A slit, g, is sawecl in the lower end of the quill upward to near the top a of the head A, which head has a .tapering hole through it', largest at the bottom end. The lower end of this' tapering part ofthe quill B tits the hole through the head A of the bobhin so closely that the divided parte, l cl, ofthe quill Iare pressed firmly together. One or more bulges or enlargements,f, are' formed on .the upper portion ofthe quill to prevent the yarn slipping or sliding oft', or upsetting, when being reeled or woven from the bobhin, as is very common with straightor slightly tapering quills. From one to two inches or" the top end of the quill is also tapering, the extreme top being the smallest, and rounded to allow the Yarn to twist and wind freely. Pushing the hobbin on to the spindle of4 the spinning'machinepresses the parts cl d 'of the quill outward, and causes them to bind against the surface of the spindle and hold the hob-loin firmly in its place without'thc aid of any other device, and when yarn .is reeled or woven' from' our improved holohiri, the bulges or enlargements j prevent the yarn slipping or sliding, or heing upset land tangled, or broken during the operation of reelinger weaving the yarn, which, with the simple and eiiiciont method described of holding the hobbing'to the spindle, are the objects of our invention. v

What We claim as new, and desire to secure by Letters Patent, Yis- V l Removing a portion of the lower end of the quill, and slitting the end, as shown atg, thereby forming the annular space c, and the parts d d, which act against the surface of the spindle, all substantially as and for the purpose set forth. I

. JOSEPH DAVIS,

SAMUEL W. FSTEB. Y.

Witnesses:

JOHN E. CRANE, ALVIN LAWRENCE. 

